#ifndef __USART_H
#define __USART_H
#include "stdio.h"	
#include "sys.h" 





void USART1_Init(u32 bound);


void USART_SendString(USART_TypeDef * USARTx,unsigned char *str, unsigned short len);
   
void UsartPrintf(USART_TypeDef *USARTx, char *fmt,...);

#endif


